Fushigi Y?gi: Byakko Senki, Vol. 2 — Yuu Watase

Ten years after being sucked into The Universe of the Four Gods, Suzuno leads a quiet life as a high school student in 1930s Tokyo. Just when she decides to get serious about her future and think about marriage, the book mysteriously reappears and throws all her plans into question. She resolves to return the book to the library, but a harrowing encounter on the street leaves her with no other choice but to return to The Universe of the Four Gods!